Gear Swap

J

jnicklo

New member
From the people who have done a gear swap...


how much will a swap to 342's or 373's cost me?

Parts & Labor


Maybe even the LSD as well.

Thanks
 
E

Eli

New member
From the people who have done a gear swap...

how much will a swap to 342's or 373's cost me?

Parts & Labor

Maybe even the LSD as well.

Thanks
Click to expand...

Please don't waste your money. Go with at least 4.10s, and dont even think about installing them without a diffrential.

Gears:200
Limited Slip:250-400
Install:200-400 depending on if you know where to go or not
 
D

duner

New member
Please don't waste your money. Go with at least 4.10s, and dont even think about installing them without a diffrential.

Gears:200
Limited Slip:250-400
Install:200-400 depending on if you know where to go or not
Click to expand...
4.10s are the stuff. Be prepared to do a driveshaft though. Maybe you'll get lucky. I didn't. Got my new driveshaft from Dennis Reinhart. Also, the LSD is needed. Without the LSD the gears would be almost usless.

I wouldn't waste my money on anything less. My pricing was similar to Eli's.

Keith
 
U

unstoppable

New member
Gears- I paid 125.
Locking differential- I paid 320. retail was 425.
New install kit with all new bearrings,seals,and races 125.
install-free!!!

The feeling of blowing the tires off all the way through the top of second - priceless!!!!!!
 
D

duner

New member
What do you mean by horrible? Before the gears I got a pretty consistent 23mpg and after it's around 20. This is mixed driving. It maybe more than that, but you don't get good mileage leaving 2 burnout marks on the pavement on launch or from the 1st to 2nd shift. I love roasting the tires on the 1st to 2nd shift.

There are folks here getting better mileage than me with gears.

I’m not sure if I lost more economy from the higher revs on the highway or from enjoying the added power.

Keith
 
B

blk mk8

New member
i never like 4.10's but if you want them they will work good for you. i love 3.73 but hey they work great for me.
 
S

Stra Dog

New member
The only gears I would Get would be 373's , just for the fact I won't be at the track all the time and I drive on the highway alot. But would i need to get a new differential along with the gears or just the gears and install kit... ?

Jon Ike
95 MKVIII
STRA DOG
 
Mad1stGen

Mad1stGen

Booster
If you want 3.73s, you might as well go with a new center section from FRPP. Max at FiveStar has them for around $650 shipped for club members. This way you still have your old pumpkin, if you ever decide to sell the car ... not that you would. LOL.
 
J

JC

New member
$650 - 3.73 rear with traction lock from local Ford Motorsports dealer
$20 - gear for speedometer
$125 - driveshaft from 93 Mark VIII (junkyard)
$10 - Check driveshaft ballance at shop
$80 - urathane bushings from Geno at LMS
$300 - installation
 
sleeper

sleeper

Former LOD President
I'll do that installation for half that price! (if you're getting the FMS pumpkin, so i'm not setting up the gears).
 
D

DavidCC

New member
I've been driving with 4.10 for a little over a year. I love'em tehy PULL like crazy. However 80% of my driving is hiway so I have been thinking about 3.73. The higher RPMs is not really a problem, hardly noticeable (unless your exhaust is too loud). Gas mileage suffered about 10% or a little more over stock. I'm thinking I could buy a new 3.73 center and just sell this 4.10 center whole... I might if I'm lucky break even on the deal...





94 Mark VIII, Black / Black
dynoed at 247.5hp / 259.7ft-lb!
 
V

viiiball

New member
I want to do the 4:10 swap,I am not very savy on these things but can a shadetree mechanic do this swap or should it be done by a pro. also i know you have to buy an install kit and speedo gear but do you need a new pumpkin if your car has trac control,how come you cannot use the factory one and what exactly is the minimum you need for the swap,In oct I am going to have my car on jackstands changing front struts and sway bar in rear,would like to get this done too.any info always appreciated!
 
D

DavidCC

New member
Dennis R. did mine, he reused the same pumpkin.

94 Mark VIII, Black / Black
dynoed at 247.5hp / 259.7ft-lb!
 
B

Brad

New member
Now on the 4.10 if you were at a stop light and punched it you would spin like crazy through first. How can you win a race like that? How bads the spin
 
sleeper

sleeper

Former LOD President
I've driven a couple of peoples cars with 4.10's and the traction problem isn't that severe.
 
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